A/RES/53/77 Page 41 3. Calls upon the nuclear-weapon States to undertake the necessary steps towards the seamless integration of all five nuclear-weapon States into the process leading to the total elimination of nuclear weapons; 4. Also calls upon the nuclear-weapon States to pursue vigorously the reduction of reliance on nonstrategic nuclear weapons and negotiations on their elimination as an integral part of their overall nuclear disarmament activities; 5. Further calls upon the nuclear-weapon States, as an interim measure, to proceed to the dealerting of their nuclear weapons and, in turn, to the removal of nuclear warheads from delivery vehicles; 6. Urges the nuclear-weapon States to examine further interim measures, including measures to enhance strategic stability and accordingly to review strategic doctrines; 7. Calls upon those three States that are nuclear-weapon capable and that have not yet acceded to the Treaty on the Non-Proliferation of Nuclear Weapons to reverse clearly and urgently the pursuit of all nuclear weapons development or deployment and to refrain from any action which could undermine regional and international peace and security and the efforts of the international community towards nuclear disarmament and the prevention of nuclear weapons proliferation; 8. Calls upon those States that have not yet done so to adhere unconditionally and without delay to the Treaty on the Non-Proliferation of Nuclear Weapons and to take all the necessary measures which flow from adherence to this instrument; 9. Also calls upon those States that have not yet done so to conclude full-scope safeguards agreements with the International Atomic Energy Agency and to conclude additional protocols to their safeguards agreements on the basis of the Model Protocol approved by the Board of Governors of the Agency on 15 May 1997;61 10. Further calls upon those States that have not yet done so to sign and ratify, unconditionally and without delay, the Comprehensive Nuclear-Test-Ban Treaty26 and, pending the entry into force of the Treaty, to observe a moratorium on nuclear tests; 11. Calls upon those States that have not yet done so to adhere to the Convention on the Physical Protection of Nuclear Material62 and to work towards its further strengthening; 12. Calls upon the Conference on Disarmament to pursue its negotiations in the Ad Hoc Committee established under item 1 of its agenda entitled “Cessation of the nuclear arms race and nuclear disarmament”, on the basis of the report of the Special Coordinator33 and the mandate contained therein, of a non-discriminatory, multilateral and internationally and effectively verifiable treaty banning the production of fissile material for nuclear weapons or other nuclear explosive devices, taking into consideration both nuclear non-proliferation and nuclear disarmament objectives, and to conclude these 61 See IAEA/GOV/2914, attachment 1. 62 United Nations, Treaty Series, vol. 1456, No. 24631. /...